Systemd-boot: Difference between revisions

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{{Short description|UEFI boot manager}}

{{Lowercase title}}

{{Infobox software

| name = Gummibootsystemd-boot

| screenshot = File:Systemd-boot on Arch Linux.png

| title = Gummiboot

| developer = [[Kay Sievers]], [[Harald Hoyer]], Karel Zak

| logo = <!-- [[File: ]] -->

| latest release date released = {{Start date and age|20132012|1206|2128}}

| logo caption =

| programming language = [[C (programming language)|C]]

| screenshot = <!-- [[File: ]] -->

| repo = {{URL|https://github.com/systemd/systemd/tree/main/src/boot}}

| caption =

| genre = [[Boot loader]] for [[UEFI]] systems

| collapsible =

| license = [[GNU Lesser General Public License|GNU LGPL-2.1-or-later]]

| author =

| website = {{URL|https://systemd.io/BOOT/}}

| developer = [[Kay Sievers]], [[Harald Hoyer]], Karel Zak

| released = <!-- {{Start date|YYYY|MM|DD|df=yes/no}} -->

| discontinued =

| latest release version = 42

| latest release date = {{Start date and age|2013|12|21}}

| latest preview version =

| latest preview date = <!-- {{Start date and age|YYYY|MM|DD|df=yes/no}} -->

| frequently updated = <!-- DO NOT include this parameter unless you know what it does -->

| status =

| programming language = [[C (programming language)|C]]

| platform =

| size =

| language =

| language count = <!-- DO NOT include this parameter unless you know what it does -->

| language footnote =

| genre = UEFI [[bootloader]]

| license = [[GNU Lesser General Public License|GNU LGPL]]

| website = {{URL|http://freedesktop.org/wiki/Software/gummiboot}}

}}

'''Gummiboot''' is an [[open source]] [[boot loader]] for systems using the [[Unified Extensible Firmware Interface]]. Developed by the [[Red Hat]] employees [[Kay Sievers]] and [[Harald Hoyer]], it is intended to be a minimal alternative to [[GNU GRUB]] that "just works"{{emdash}}it automatically detects bootable images (including Linux kernel images, operating systems, and other boot loaders), does not require a configuration file, provides a basic menu interface, and can also integrate with [[systemd]] to provide performance data. Its name comes from a [[German language|German]] word referring to an [[inflatable boat]].<ref name="theh-gummi"/>

'''systemd-boot''' is a [[Free and open-source software|free and open-source]] [[Bootloader|boot manager]], previously known as '''gummiboot'''.

Gummiboot is licensed under the [[GNU Lesser General Public License]] version 2.1, unlike GRUB which is licensed under the [[GNU General Public License version 3]]. This distinction is intended to allow Gummiboot to be suitable for use on UEFI systems implementing "secure boot",<ref name=theh-gummi>{{cite web|title=Gummiboot is an EFI boot loader that "just works"|url=http://www.h-online.com/open/news/item/Gummiboot-is-an-EFI-boot-loader-that-just-works-1628719.html|publisher=The H|accessdate=11 September 2012}}</ref> due to concerns surrounding its requirement to distribute all authorization keys (such as [[digital certificate]]s.) needed to run GPL v3-licensed software if [[hardware restrictions]] such as secure boot are in effect.<ref name=lwn-efilinux>{{cite web|title=Ubuntu details its UEFI secure boot plans|url=http://lwn.net/Articles/503803/|publisher=Linux Weekly News|accessdate=11 September 2012}}</ref>

==gummiboot==

Despite being developed by two of its employees, Red Hat's [[Fedora (operating system)|Fedora Project]] does not use gummiboot for booting UEFI systems; instead, it will use efilinux to [[chainload]] GRUB.<ref name=lwn-efilinux/><ref name="theh-gummi"/>

'''Gummiboot'''gummiboot iswas an [[open source]] [[boot loader]] for systems using the [[Unified Extensible Firmware Interface]]. Developeddeveloped by the [[Red Hat]] employees [[Kay Sievers]] and [[Harald Hoyer]], itand is intended todesigned beas a minimal alternative to [[GNU GRUB]] thatfor "justsystems works"{{emdash}}itusing the [[Unified Extensible Firmware Interface]] (UEFI). The boot loader automatically detectsdetected bootable images (including Linux kernel images, [[operating systems,system]]s and other boot loaders), doesdid not require a configuration file, providesprovided a basic menu-based interface, and cancould also integrate with [[systemd]] to provide performance data.<ref>{{Cite Its name comes from a [[German languageweb|German]]url=https://systemd.io/BOOT_LOADER_INTERFACE/|title word= referringBoot toLoader an [[inflatable boat]].Interface}}</ref name="theh-gummi"/>

As a [[word play]], the name "gummiboot" means "[[inflatable boat|rubber (inflatable) boat]]" in [[German language|German]], the native language of its initial developers.<ref name="theh-gummi" /><ref>{{Cite web |date=2012-06-28 |title=Lennart Poettering - Google+ |url=https://plus.google.com/+LennartPoetteringTheOneAndOnly/posts/gDfHgApPma1 |archive-url=https://web.archive.org/web/20150222214051/https://plus.google.com/+LennartPoetteringTheOneAndOnly/posts/gDfHgApPma1 |archive-date=2015-02-22 |access-date=2025-08-10 |website=plus.google.com |language=en}}</ref> Despite being developed by two of its employees, Red Hat's [[Fedora (operating system)|Fedora Project]] did not use gummiboot for booting UEFI systems; instead, it used efilinux to [[chainload]] GRUB.<ref name="theh-gummi" /><ref name="lwn-efilinux" />

Gummibootgummiboot iswas licensed under the [[GNU Lesser General Public License]] version |LGPL-2.1-or-later]], unlike GRUB which is licensed under the [[GNU General Public License version |GPL-3.0-or-later]]. This distinction iswas intended to allow Gummibootgummiboot to be suitable for use on UEFI systems implementing "[[Secure Boot|secure boot"]],<ref name="theh-gummi">{{cite web |title=Gummiboot is an EFI boot loader that "just works" |url=http://www.h-online.com/open/news/item/Gummiboot-is-an-EFI-boot-loader-that-just-works-1628719.html |publisherurl-status=Thedead |archive-url=https://archive.today/20131207074105/http://www.h-online.com/open/news/item/Gummiboot-is-an-EFI-boot-loader-that-just-works-1628719.html |archive-date=2013-12-07 H|accessdate=11 September 2012 |publisher=The H}}</ref> due to concerns surrounding its requirement to distribute all authorization keys (such as [[digital certificate]]s.) needed to run GPL -v3-licensed software if [[hardware restrictions]] such as secure boot are in effect.<ref name=lwn-efilinux>{{cite web|title=Ubuntu details its UEFI secure boot plans|url=httphttps://lwn.net/Articles/503803/|publisher=Linux Weekly News|accessdate=11 September 2012}}</ref>

In May 2015, gummiboot was merged into [[systemd]] and renamed to "systemd-boot".<ref>{{cite web | url = http://www.rodsbooks.com/efi-bootloaders/gummiboot.html| title = Managing EFI Boot Loaders for Linux: Using gummiboot| author = Rod Smith| date = 2013-04-27}}</ref><ref>{{cite web| url = https://www.phoronix.com/scan.php?page=news_item&px=Systemd-220| title = Systemd 220 Has Finally Been Released | date = 2015-05-21 | accessdate = 2015-08-17 | author = Michael Larabel | publisher = [[Phoronix]]}}</ref><ref>{{cite web | url = http://lists.freedesktop.org/archives/systemd-devel/2015-May/032147.html | title = <nowiki>[systemd-devel] [ANNOUNCE]</nowiki> systemd&nbsp;v220 | date = 2015-05-21 | accessdate = 2021-09-27 | author = [[Lennart Poettering]] | website = lists.freedesktop.org}}</ref><ref>{{cite web | url = https://phoronix.com/scan.php?page=news_item&px=Gummiboot-Is-Dead | title = Gummiboot is Dead | date = 2015-07-07 | accessdate = 2015-08-17 | author = Michael Larabel | publisher = [[Phoronix]]}}</ref>

== See also ==

{{Portal|Linux|Free and open-source software}}

* [[Comparison of boot loaders]]

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== External links ==

* [https://www.freedesktop.org/software/systemd/man/systemd-boot.html systemd-boot(7)] - [[Manual page]]

* {{Official website|http://freedesktop.org/wiki/Software/gummiboot}}

[[Category:Free boot loaders]]

[[Category:Free software programmed in C]]

[[Category:Linux kernel-related software]]

[[Category:Linux-only free software]]

{{foss-stub}}